(20) It is not, however, aligned with that guideline: whereas a reservation is defined “subjectively” by the objective pursued by the author (as reflected by the expression “purports to …” in those provisions), partial withdrawal is defined “objectively” by the effects that it produces.
20) Sin embargo, no coincide con ella: mientras que una reserva se define "subjetivamente" por el objetivo que persigue su autor (lo que refleja la expresión "con objeto de" en esas disposiciones), el retiro parcial lo es "objetivamente" por los efectos que produce.